<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>  
                <el-row :gutter="15">
                    <el-col :span="7">
                        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="clearInput">
                            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                        </el-input>
                    </el-col>  
                    <el-col :span="4">
                        <el-button type="primary" @click="addUser">添加用户</el-button>
                        <el-dialog
                            title="添加用户"
                            :visible.sync="dialogVisible"
                            width="50%"
                            @close="addDialogClose">
                                <el-form ref="addFormRef" :model="addForm" label-width="70px" :rules="addUserRules">
                                    <el-form-item label="用户名" prop="username">
                                        <el-input v-model="addForm.username"></el-input>
                                    </el-form-item>
                                    <el-form-item label="密码" disabled prop="password">
                                        <el-input v-model="addForm.password"></el-input>
                                    </el-form-item>
                                    <el-form-item label="邮箱" prop="email">
                                        <el-input v-model="addForm.email"></el-input>
                                    </el-form-item>
                                    <el-form-item label="电话" prop="mobile">
                                        <el-input v-model="addForm.mobile"></el-input>
                                    </el-form-item>
                                </el-form>
                            <span slot="footer" class="dialog-footer">
                                <el-button @click="dialogVisible = false ">取 消</el-button>
                                <el-button type="primary" @click="addUserMes">确 定</el-button>
                            </span>
                        </el-dialog>
                    </el-col>                    
                </el-row>

            <el-table :data="userList" stripe border>
                <el-table-column type='index'></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="手机号"> </el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column prop="my_state" label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="switchChange(scope.row)">                            
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" @click="editUser(scope.row.id)" size="mini"></el-button>
                        <el-button type="danger" icon="el-icon-delete" @click="delUser(scope.row.id)" size="mini"></el-button>
                        
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
            <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="50%"
                @close="editUserClose">
                <el-form :model="editUserForm" :rules="editUserRules" ref="editFormRef" label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="editUserForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="editUserForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机号" prop="mobile">
                        <el-input v-model="editUserForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>
        </el-card>
        <!-- 分配角色的提示框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClose">
            <div>
                <p>当前的用户: {{userInfo.username}}</p>
                <p>当前的角色: {{userInfo.authName}}</p>
                <p>分配新角色:
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default {
    data(){
        var checkEmail = (rule, value, callback) => {
                if (!value) {
                    return callback(new Error('邮箱格式不正确'));
                }
                var reg = /^[a-zA-Z0-9_.-]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*\.[a-zA-Z0-9]{2,6}$/
                if(reg.test(value)){
                    return callback()
                }     
                callback(new Error('请输入合法的邮箱'))          
            };
            var checkMobile = (rule, value, callback) => {
                var reg = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
                if(reg.test(value)){
                    return callback()
                }     
                callback(new Error('请输入正确的手机号'))          
            };
        return {
            
            queryInfo: {
                query : '',
                pagenum : 1,
                pagesize : 2
            },
            userList :[],
            total : 0,
            dialogVisible : false,
            editDialogVisible : false,
            addForm : {
                username : '',
                password:'',
                email:'',
                mobile : ''
            },
            addUserRules: {
                username : [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
                ],
                password : [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email : [
                    {  required: true,validator: checkEmail, trigger: 'blur' }
                ],
                mobile : [
                    { required: true,validator :checkMobile, trigger: 'blur' }
                ]
            },
            editUserForm :{},
            editUserRules : {
                username : [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
                ],
                password : [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email : [
                    {  required: true,validator: checkEmail, trigger: 'blur' }
                ]
            },
            setRoleDialogVisible:false,
            userInfo : {},
            rolesList:[],
            selectedRoleId:''

        }
    },
    created(){
        this.getUserList()
    },
    methods : {
        async getUserList(){
            const {data:res} = await this.$http.get('users',{params : this.queryInfo})
            if(res.meta.status !== 200) return this.$message.error('获取用户列表失败')
            this.userList = res.data.users
            this.total = res.data.total
        },
        //监听pagesize改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        //监听页码值改变事件
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        async switchChange(user){
            const {data :res} = await this.$http.put('users/'+user.id+'/state/'+user.mg_state)
            if(res.meta.status !== 200) {
                user.mg_state = !user.mg_state
                return this.$message.error('修改用户状态失败')
            }
            this.$message.success('更新成功')
        },
        clearInput(){
            this.getUserList()
        },
        addUser(){
            this.dialogVisible = true
        },
        addDialogClose(){
            this.$refs.addFormRef.resetFields()
        },
        
        addUserMes(){
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return
                const {data : res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !==201){
                    return this.$message.error('添加用户失败')

                }
                this.$message.success('添加成功')
                this.dialogVisible =false
                this.getUserList()
            })
        },
        //修改用户对话框
        async editUser(id){
            
            const {data : res} = await this.$http.get('users/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('请求失败')
            }
            this.editUserForm= res.data
            this.editDialogVisible = true
        },
        editUserClose(){
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid =>{
                if(!valid) return
                const {data : res} = await this.$http.put('users/'+this.editUserForm.id,{email: this.editUserForm.email,mobile:this.editUserForm.mobile})
                if(res.meta.status !==200){
                    return this.$message.error('修改失败')
                }
                this.editDialogVisible = false
                this.$message.success('修改成功')
                this.getUserList()
            })
        },
        async delUser(id){
            const result = await this.$confirm('此操作将永久删除该用户, 是否继续?', '删除', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch((error) => {  
                return error
            });
            if(result !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res} = await this.$http.delete('users/'+id)
            if(res.meta.status !== 200){
                this.$message.error('删除失败')
            }
            this.$message.success('删除成功')
            this.getUserList()
        },
        async setRole(userInfo){
            this.userInfo = userInfo
            const {data :res} = await this.$http.get('roles')
             if(res.meta.status !== 200){
                return this.$message.info('获取失败')
            }
            this.rolesList = res.data
            this.setRoleDialogVisible = true

        },

        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
                rid:this.selectedRoleId
            })
            if(res.meta.status !== 200){
                this.$message.error('更新角色失败')
            }
            this.$message.success('更新成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        setRoleDialogClose(){
            this.selectedRoleId = ''
            this.userInfo={}
        }

    }
}
</script>
<style lang="less" scoped>
     .el-input {
         width:300px;
     }
</style>